n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 9 |
5 | 20 |
6 | 46 |
7 | 106 |
8 | 247 |
9 | 578 |
10 | 1359 |
11 | 3204 |
12 | 7573 |
13 | 17930 |
14 | 42512 |
15 | 100902 |
16 | 239694 |
17 | 569768 |
18 | 1355083 |
19 | 3224124 |
20 | 7673612 |
21 | 18268414 |
22 | 43500301 |
23 | 103599089 |
24 | 246761629 |
25 | 587822094 |
26 | 1400398656 |
27 | 3336473471 |
28 | 7949650646 |
29 | 18942098721 |
30 | 45136103113 |
31 | 107555568419 |
32 | 256302098369 |
[1,1,2,4,9,20,46,106,247,578,1359,3204,7573,17930, 42512,100902,239694,569768,1355083,3224124, 7673612,18268414,43500301,103599089,246761629, 587822094,1400398656,3336473471,7949650646, 18942098721,45136103113,107555568419,256302098369] |